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Finding the Fourth Proportional to 352,316.56, 485,525.67 and 345,838.81

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Solution

The fourth proportional to 352,316.56, 485,525.67 and 345,838.81 is: 476,598.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,316.56 : 485,525.67 = 345,838.81 : x
  2. Step 2: Convert to fraction form
    352,316.56/485,525.67 = 345,838.81/x
  3. Step 3: Cross multiply
    352,316.56x = 485,525.67 × 345,838.81
  4. Step 4: Simplify right side
    352,316.56x = 167,913,619,937.25
  5. Step 5: Solve for x
    x = 167,913,619,937.25/352,316.56
  6. Step 6: Final answer
    x = 476,598.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.